Lenzburg Flag

Lenzburg

County Seat:
No
Area (mi²):
1.155
State:
Illinois

Lenzburg is a village located in St. Clair County, Illinois. Lenzburg has a 2025 population of 448 . Lenzburg is currently declining at a rate of -0.67% annually and its population has decreased by -3.66% since the most recent census, which recorded a population of 465 in 2020.

The median household income in Lenzburg is $44,722 with a poverty rate of 17.03%. The median age in Lenzburg is 32 years: 32.3 years for males, and 31.8 years for females. For every 100 females there are 89.3 males.

448
Total Population
388
Density (mi²)
-3 -0.67%
Growth

Lenzburg Population

Lenzburg Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Lenzburg includes 96.49% White, and smaller percentages for Black or African American and multiracial populations.

Population by Race

White (96.49%)

Two or more races (3.31%)

Black or African American (0.19%)

Race
Population
Percentage (of total)
White49596.49%
Two or more races173.31%
Black or African American10.19%

Lenzburg Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Lenzburg's average per capita income is $38,929. Household income levels show a median of $44,722. The poverty rate stands at 17.03%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median
Mean
Married Families$80,536-
Families$66,250$80,311
Households$44,722$66,290
Non Families$35,114$41,430

$38,929

Average Income

$44,722

Median Household Income

17.03%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)